The Morning's Top 5 Pop Culture Stories

1. Good news for the summer of superheroes: Thor topped the weekend box office, bringing in $66 million in its opening weekend. It was followed by Fast Five ($32 million) and Jumping the Broom ($13.7 million). [via Movieline]

2. Def Leppard is planning to release an album of rock lullabies for babies aka, 12 “softer” versions of the band’s hit songs. [via NME]

3. Andy Warhol’s Sixteen Jackies — a 1964 painting from his well-known series of portraits of the First Lady — is expected to sell for $30 million when it goes up for auction tomorrow at Soethby’s in New York. [via Artdaily]

4. Paula Abdul will join Cheryl Cole, L.A. Reid, and Simon Cowell as a judge on The X Factor this fall. Says Cowell: “This show would never have been the same without Paula and I can’t believe I am saying this – I have missed her a lot, and I am thrilled she’s on the show.” [via Deadline]